The CS has always treated rack-local same as node-local... so yes, the current behaviour is expected.
Arun On Oct 18, 2011, at 5:59 PM, Todd Lipcon wrote: > Hey folks, > > Looking at ContainerLeafQueue in MR2, it seems that delay scheduling > is only used for rack locality and not for node locality. This is > resulting in jobs on a single-rack cluster having much less locality > than MR1 and impacting performance. > > Was this an intentional decision? Or am I misunderstanding the code here? > > -Todd > -- > Todd Lipcon > Software Engineer, Cloudera
